old_list = [1, 4, 9, 16, 2, 5, 10, 15]
old_list_len = len(old_list)
new_list = []

for i in range(old_list_len-1):
    n = old_list[i] + old_list[i+1]
    new_list.append(n)

print(new_list)


# 完成的不错
